Gayana is a biannual peer-reviewed scientific journal published by the University of Concepción. It covers zoology and oceanology works on taxonomy, systematics, phylogeny, biogeography, environmental
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc89cdaa2683357230de53913336dbad544d877d814dd8fa549f595f489e2e8a. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ffdae3b7-29e7-4d1c-9ab0-fbf395b8423c.json and https://artists.proofprofile.net/proofs/artist/ffdae3b7-29e7-4d1c-9ab0-fbf395b8423c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bca0bc9c1baebab904bb67aa0fa62cdee64e97c0b32fa157af9004ba6cc4640. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA61578960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad2a0a55789eb466daeef5c60675d4106530927e4baa98b53b672b2957fc3cd0. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ91542877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad2a0a55789eb466daeef5c60675d4106530927e4baa98b53b672b2957fc3cd0. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T16:28:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ91542877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2822c80da18ce8885d0fe738a3b4c0dad529f9aba57759a8610254ed87d79f92. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T05:43:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ2091352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81648ed8cdef4fe45c5ab73f134c211d6db662f107cb20cd669a1c35e026924e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92033141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ac802cb3b24f3f655a000088321078a0aa0f232ced5c6256360c109467c300. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2112715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2679598cbab5ef019292cd5dae35a4ae6809557f47e114a6f896aa4176ddd7c2. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZL5N2333740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90fa5eb5a9e9412de03bf2295b69cdb7e76fe9ccebb94680e2171e939dd17d64. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUAGV2406238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f6ee788e7bab353cf20f941e87dd603187d8251bc4ba5aed82ce250a582d5d. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUAGV2409895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69af006ecae18a82bb54b1df15f748dc2a9255f577d88214acc257f6ae5db88b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJX2507583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeacd392d1816a703e611eb0480b2d3f81cfe7f722cd6a589fbbca627c592c3b2. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTPX2533310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d3baf64b2384cdb9ab4876274fedd684feb68e00510009ecaff15966738653. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA61578954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bca0bc9c1baebab904bb67aa0fa62cdee64e97c0b32fa157af9004ba6cc4640. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA61578960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ed98883596a36f1e2f3673cb3df98f5a4b132d2dd36f2f5e57be03c11d6f9c. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBJX32216074.